| 广西五圩矿田箭猪坡矿床构造变形及演化 |
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| 引用本文：张 元,陈爱兵,张庆松,袁 远,刘伯胜,杨 剑,黄玉洁,罗连丽.2025.广西五圩矿田箭猪坡矿床构造变形及演化[J].地球学报,46(4):711-725. |
| DOI：10.3975/cagsb.2024.103101 |
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| 基金项目:国家自然科学基金项目(编号: 42072094; 42162012) |
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| 中文摘要:文章通过箭猪坡矿床构造变形与演化期次研究, 探讨矿区构造几何学、运动学以及动力学特征, 论述构造演化对成矿的控制作用。箭猪坡矿区褶皱、断裂、节理发育, 具多期活动特征。褶皱有直立倾伏褶皱和斜歪倾伏褶皱, 轴面走向有NW、NE和NS向。断裂和节理按走向可划分为NE、NW、NNW、NS、EW向五组, 断裂形成先后顺序为: NW、NNW→NE→EW→NS, 节理以剪节理为主。研究区存在4个方向的主压应力, 分别为NE–SW向、NW–SE向、EW向、NS(NNW)向。研究区构造演化经历了4个时期, D2期和D3期(燕山中晚期)是主成矿期, NNW向张扭性断裂侧伏方向以及与NW向断裂交汇部位具较好的找矿前景。 |
| 中文关键词:构造变形 构造演化 古应力场恢复 箭猪坡矿床 |
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| Tectonic Deformation and Evolution of the Jianzhupo Deposit in Wuxu Ore Field, Guangxi |
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| Abstract:Based the research of the tectonic deformation and evolution period of the Jianzhupo deposit, we discuss the tectonic geometry, kinematics and dynamic characteristics of the mining area, to study the controlling effect of tectonic evolution on mineralization. The Jianzhupo deposit area has developed folds, faults and joints, and is characterized by multi-stage activities. The folds contain upright dipping folds and oblique dipping folds, and the axial direction is NW, NE and NS. The faults and joints can be divided into five groups according to the trend: NE, NW, NNW, NS, and EW, and the order of fault formation is NW, NNW→NE→EW→NS, and the joints are mainly sheared joints. There are four main compressive stresses in the study area: NE–SW, NW–SE, EW and NS(NNW). The tectonic evolution of the study area is comprise of four periods, with D2 and D3 (middle and late Yanshan) being the main metallogenic periods. The lateral direction of NNW to the tensile torsional fault and the intersection with the NW fault have good prospecting prospects. |
| keywords:tectonic deformation tectonic evolution paleostress field restoration Jianzhupo deposit |
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